Home / 10,237.20-15,355.80-9,702.60

Finding the Fourth Proportional to 10,237.20, 15,355.80 and 9,702.60

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Solution

The fourth proportional to 10,237.20, 15,355.80 and 9,702.60 is: 14,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,237.20 : 15,355.80 = 9,702.60 : x
  2. Step 2: Convert to fraction form
    10,237.20/15,355.80 = 9,702.60/x
  3. Step 3: Cross multiply
    10,237.20x = 15,355.80 × 9,702.60
  4. Step 4: Simplify right side
    10,237.20x = 148,991,185.08
  5. Step 5: Solve for x
    x = 148,991,185.08/10,237.20
  6. Step 6: Final answer
    x = 14,553.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.